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-Atoms are "uncuttable"-
atoms are small, hard, particles
-atoms constantly move- -
atomic model
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atomic model
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-all substances are made of atoms- atoms of different elements are different- atoms of the same element are exactly alike- elements combine in specific proportions- he conducted experiments in combining elements-
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-He conducted the cathode-ray tube experiment- his theory of the atomic structure lead to the "plum-pudding" model- there are small, negatively charged particles inside an atom-
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Atomic Model
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-Atoms contain mostly empty space- he conducted the gold foil experiment-most of an atom's mass is in the nucleus- there is a small, dense, positively charged nucleus-
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atomic model
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atomic model
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-electrons jump between levels from path to path- electrons move in empty space in the atom- electrons travel in definite paths-
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-electron paths cannot be predicted- electrons are found in electron clouds, not paths-
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Atomic Model
